ERW steel pipe is able to meet the oil, natural gas pipeline.
Characteristics of ERW Pipe
(1) ERW steel pipe welding mechanism made gratifying achievements, and to the theory as a guide for the optimization of the welding process, all optimized parameters, the computer control, to mention Song of weld quality.
(2) weld annealing using fluorescence line positioning technology, so that annealing strictly specified site, so that weld quality further improved.
(3) early ERW pipe weld zone the ductile-brittle turn temperature FATT value is much higher than the base metal, the maximum difference of 40-50 degrees. Metallurgical and technological progress, the FATT the value of the pipe base metal can be as low as about -70-80 degrees, so even if the two have some difference, able to meet user requirements.
(4) the application of the technology of automated ultrasonic testing, ultrasonic automatic tracking online detection can be achieved, so that the weld formed to further reduce the probability of missing hidden due to undetected.
http://www.xysteelpipe.com/info/Characteristics-of-ERW-steel-pipe-865-1.htm
2018年1月30日星期二
Straight seam steel pipe the cause of the wrong side
Straight seam pipe in the production, the wrong side have occurred, many of its influencing factors. In production practice, often by the wrong side of the error so that steel pipe demotion. Therefore, it is necessary to analyze the cause of the wrong edge of the straight seam pipe and the precautionary measures.
1.the sickle bend steel strip is the most important factor in the wrong side of the pipe. In the spiral pipe molding, the sickle bend steel strip will continue to change the forming angle, resulting in weld gap changes, resulting in open seam, the wrong edge or even take the edge. Seriously affecting the quality of the steel pipe, so the observation of the sickle bend after the uncoiling of the steel strip, by controlling the vertical roller so that the disc can be cut off part of the sickle bending and forming angle of the continuous control and correction is to reduce the production process sickle bend The wrong way to create an effective way.
2.due to the non-trimming of steel head and tail shape and size of poor accuracy, easy to cause when the steel strip bending caused by the wrong side.
3.the head and tail of the steel butt welding weld residual height larger, over-molding if handled properly, likely to cause greater wrong edge.
4.the edge of the strip poor condition is another important reason for the wrong side.
http://www.xysteelpipe.com/info/Straight-seam-steel-pipe-the-cause-of-the-wrong-side-864-1.htm
1.the sickle bend steel strip is the most important factor in the wrong side of the pipe. In the spiral pipe molding, the sickle bend steel strip will continue to change the forming angle, resulting in weld gap changes, resulting in open seam, the wrong edge or even take the edge. Seriously affecting the quality of the steel pipe, so the observation of the sickle bend after the uncoiling of the steel strip, by controlling the vertical roller so that the disc can be cut off part of the sickle bending and forming angle of the continuous control and correction is to reduce the production process sickle bend The wrong way to create an effective way.
2.due to the non-trimming of steel head and tail shape and size of poor accuracy, easy to cause when the steel strip bending caused by the wrong side.
3.the head and tail of the steel butt welding weld residual height larger, over-molding if handled properly, likely to cause greater wrong edge.
4.the edge of the strip poor condition is another important reason for the wrong side.
http://www.xysteelpipe.com/info/Straight-seam-steel-pipe-the-cause-of-the-wrong-side-864-1.htm
The difference between galvanized steel pipe and black steel pipe
The carrying work of water and gas for residential homes and commercial buildings would be depend on various pipes like seamless steel pipe, ERW steel pipe, galvanized steel pipe as well as black steel pipe. We know that water and gas would be essential for human needs and what's the difference for different pipes? Today, we would have a comparison for galvanized steel pipe and black steel pipe.
Galvanized pipe: Covered with a zinc material, galvanized steel pipe would be have the character of more resistant to corrosion. At first, galvanized pipe is just used to carry water to homes and commercial buildings. The zinc also prevents the buildup of mineral deposits that can clog the water line. Galvanized pipe is commonly used as scaffolding frames because of its resistance to corrosion.
Black Steel Pipe: Different from galvanized pipe, black steel pipe is non-coated. The dark color comes from the iron-oxide which is formed on its surface during manufacturing. The purpose of the black steel pipe at begging is to carry propane or natural gas into residential homes and commercial buildings. It is produced without a seam, making it a better pipe to carry gas. The black steel pipe is also used for fire sprinkler systems because it is more fire-resistant than galvanized pipe.
With time goes on, there is no doubt that technology has gained big progress. Thus the usage of each kind of steel pipe would be wide than before, so do for these two kinds of pipes.
http://www.xysteelpipe.com/info/The-difference-between-galvanized-steel-pipe-and-black-steel-pipe-858-1.htm
Galvanized pipe: Covered with a zinc material, galvanized steel pipe would be have the character of more resistant to corrosion. At first, galvanized pipe is just used to carry water to homes and commercial buildings. The zinc also prevents the buildup of mineral deposits that can clog the water line. Galvanized pipe is commonly used as scaffolding frames because of its resistance to corrosion.
Black Steel Pipe: Different from galvanized pipe, black steel pipe is non-coated. The dark color comes from the iron-oxide which is formed on its surface during manufacturing. The purpose of the black steel pipe at begging is to carry propane or natural gas into residential homes and commercial buildings. It is produced without a seam, making it a better pipe to carry gas. The black steel pipe is also used for fire sprinkler systems because it is more fire-resistant than galvanized pipe.
With time goes on, there is no doubt that technology has gained big progress. Thus the usage of each kind of steel pipe would be wide than before, so do for these two kinds of pipes.
http://www.xysteelpipe.com/info/The-difference-between-galvanized-steel-pipe-and-black-steel-pipe-858-1.htm
Inquiring and ordering requirement for steel pipe
Dealing would be perfect with product’s completion. So for the foreign business in steel pipes’ industry, whether seamless steel pipe, ERW steel pipe or other steel pipes, it is necessary to have the details about the inquiring and ordering requirement.
Here are the aspects for the product’s list:
Designation is the first step before shipping. Among the list of designation, specification, edition, grade, type and part and No. Purchaser's own specification covering and so on are needed here.
Specific requirements are also necessary. For example, method of manufacture(seamless, electric-resistance welded), type of manufacture and type of end product are important factor to list on it.
Of course, dimensions, quantity, inspection, finish and coating, delivery requirements, end use and other needed list should be here for clients too.
http://www.xysteelpipe.com/info/Inquiring-and-ordering-requirement-for-steel-pipe-859-1.htm
Here are the aspects for the product’s list:
Designation is the first step before shipping. Among the list of designation, specification, edition, grade, type and part and No. Purchaser's own specification covering and so on are needed here.
Specific requirements are also necessary. For example, method of manufacture(seamless, electric-resistance welded), type of manufacture and type of end product are important factor to list on it.
Of course, dimensions, quantity, inspection, finish and coating, delivery requirements, end use and other needed list should be here for clients too.
http://www.xysteelpipe.com/info/Inquiring-and-ordering-requirement-for-steel-pipe-859-1.htm
Distinguish between ERW pipe and spiral welded pipe
We would like to say that the building’s exterior is beautiful when we see one. Of course, the exterior good look is also concluding the shape of various steel pipes like ERW steel pipe, spiral welded pipe which are used for water, oil and gas transportation.
No matter which kind of steel pipe you choose for your engineering project. The poor-quality steel pipes would be ousted from the group. So how could we figure out our demands for exact engineering project or estimate houses? Comparison would be one of the top choice for us.
Straight seam high frequency welded pipe, made by welding and induction, is classified different exposure to welding in two forms, hot and cold rolled. For hot rolled coils as raw materials, with other processes like continuous molding, welding, heat treatment, sizing, straightening, there is no doubt that ERW steel pipe is used for low pressure liquid delivery, such as water, gas, and oil.
For spiral welded pipe, with the characters of short, high dimensional accuracy, uniform thickness, surface quality, there is no doubt that it can hold on higher pressure than ERW steel pipe. Thus, we can choose the spiral welded pipe for the high pressure engineering project rather than the ERW steel pipe when we meet this situation.
http://www.xysteelpipe.com/info/Distinguish-between-ERW-pipe-and-spiral-welded-pipe-860-1.htm
No matter which kind of steel pipe you choose for your engineering project. The poor-quality steel pipes would be ousted from the group. So how could we figure out our demands for exact engineering project or estimate houses? Comparison would be one of the top choice for us.
Straight seam high frequency welded pipe, made by welding and induction, is classified different exposure to welding in two forms, hot and cold rolled. For hot rolled coils as raw materials, with other processes like continuous molding, welding, heat treatment, sizing, straightening, there is no doubt that ERW steel pipe is used for low pressure liquid delivery, such as water, gas, and oil.
For spiral welded pipe, with the characters of short, high dimensional accuracy, uniform thickness, surface quality, there is no doubt that it can hold on higher pressure than ERW steel pipe. Thus, we can choose the spiral welded pipe for the high pressure engineering project rather than the ERW steel pipe when we meet this situation.
http://www.xysteelpipe.com/info/Distinguish-between-ERW-pipe-and-spiral-welded-pipe-860-1.htm
2018年1月18日星期四
Where to buy best steel pipes?
Every one want to buy best steel pipes with best price and best quality. But what should we pay attention to when we buy steel pipes?
If you want to buy best steel pipes, you should control from raw material, also known as IQC(Income Quality Control). You should know about chemical component of raw material. And required test is also needed for raw material.
When it comes to the manufacture process of steel pipes, you also need to know about every process. From pipe forming, to pipe cooling, to pipe finishing.
And when the pipe is finished, all related test required by standard should all performed. And all inspection reports and MTC should be provided accordingly. If you prefer, you can also ask any third party to perform inspection to finished steel pipes.
Xinyue Steel Group is a professional steel pipe exporter and can provide one-stop steel pipe service. Products including ERW, SSAW, LSAW, SMLS, scaffolding and coupler. If you want to buy best steel pipes, contact Xinyue Steel.
http://www.xysteelpipe.com/info/Where-to-buy-best-steel-pipes-802-1.htm
If you want to buy best steel pipes, you should control from raw material, also known as IQC(Income Quality Control). You should know about chemical component of raw material. And required test is also needed for raw material.
When it comes to the manufacture process of steel pipes, you also need to know about every process. From pipe forming, to pipe cooling, to pipe finishing.
And when the pipe is finished, all related test required by standard should all performed. And all inspection reports and MTC should be provided accordingly. If you prefer, you can also ask any third party to perform inspection to finished steel pipes.
Xinyue Steel Group is a professional steel pipe exporter and can provide one-stop steel pipe service. Products including ERW, SSAW, LSAW, SMLS, scaffolding and coupler. If you want to buy best steel pipes, contact Xinyue Steel.
http://www.xysteelpipe.com/info/Where-to-buy-best-steel-pipes-802-1.htm
How to calculate the weight of carbon steel pipe?
You may know a lot of knowledge about carbon steel pipes, you maybe a professional engineer about the production process of carbon steel pipes, but do you know how to calculate the weight of carbon steel pipe? Today, we’ll talk about some ways to calculate the weight of carbon steel pipe.
For round steel pipes, we know that theoretically, the weight of round steel pipes should be the weight of outer diameter cylinder minus the weight of inner diameter cylinder. We all know the density of carbon steel pipe is 7.5 tons per square meter. The outer diameter cylinder’s volume times carbon steel pipes density minus inner diameter cylinder’s volume times carbon steel pipes density should be the theoretical weight of carbon steel pipes. But there are also a common recognized way to calculate the weight of carbon steel pipe: first, outer diameter minus wall thickness. Then used the result times the wall thickness. Then times 0.0246615. This is the result for carbon steel pipe’s weight KG per meter.
For square and rectangular steel pipe, there is also a simple way to calculate the weight. First, perimeter divide 3.14, use the result minus wall thickness. Then use the result times wall thickness, then times 0.0246615. This is the weight for square and rectangular carbon steel pipe.
So do you know about how to calculate the weight of carbon steel pipe for now? Contact us if you have any other problem.
http://www.xysteelpipe.com/info/How-to-calculate-the-weight-of-carbon-steel-pipe-803-1.htm
For round steel pipes, we know that theoretically, the weight of round steel pipes should be the weight of outer diameter cylinder minus the weight of inner diameter cylinder. We all know the density of carbon steel pipe is 7.5 tons per square meter. The outer diameter cylinder’s volume times carbon steel pipes density minus inner diameter cylinder’s volume times carbon steel pipes density should be the theoretical weight of carbon steel pipes. But there are also a common recognized way to calculate the weight of carbon steel pipe: first, outer diameter minus wall thickness. Then used the result times the wall thickness. Then times 0.0246615. This is the result for carbon steel pipe’s weight KG per meter.
For square and rectangular steel pipe, there is also a simple way to calculate the weight. First, perimeter divide 3.14, use the result minus wall thickness. Then use the result times wall thickness, then times 0.0246615. This is the weight for square and rectangular carbon steel pipe.
So do you know about how to calculate the weight of carbon steel pipe for now? Contact us if you have any other problem.
http://www.xysteelpipe.com/info/How-to-calculate-the-weight-of-carbon-steel-pipe-803-1.htm
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